Devil’s in the Details

The easy answer is there likely isn’t really any difference in cost between the two policies. The truck may be slightly cheaper considering trucks have a lower repair cost if damaged (physical damage coverage). Why?

The bed of a truck, which can easily make up over half the length of the vehicle, is typically sheet metal and nothing else.

Compare this to the back end of a car, which may have additional seating, windows, doors, electronics, upholstery, etc.

Insurance companies use the data collected from previous vehicle repairs they’ve made, and all that data tells them sheet metal is less expensive than the materials necessary to repair a “finished” cabin of a car.